Spot the Difference

We all love it when the leaves change colors in Autumn and walks in the park become an absolute pleasure. But do you know why this happens? Leaves change their color in response to chilly temperatures and less light because they stop producing chlorophyll – the green pigment that helps leaves capture sunlight to power photosynthesis.

It’s estimated that more than a thousand people live underneath the city of Las Vegas. These homeless people have made subterranean homes in the over 200 miles of flood tunnels.

Spray paint graffiti has transformed how we see our cities. Some see it as a public menace and vandalism, whilst others view it as an opportunity to express art using the city as a canvas. The East Side Gallery in Berlin is the longest stretch remaining of the wall that once divided the city in two, and is alive with vibrant graffiti murals to the cities tumultuous past but also to its united future. But do we know where the humble spray paint can was invented? The windy city itself – Chicago.